Valve.



PATENTED SEPT. 1, 1903. J. B. WARING.

VALVE. APPLIOATION FILED JULY 1, 1901. nmznwm PEB. 4, 190s..

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PATENTBD SEPT. 1, 1903.

J. B. WARINGr.l

VALVE.

APPLICATIONl FILED JULY 1, 1901. BENBWBD FEB. 4, 1903.

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WITNESSES:

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PATBNTBD SEPT. 1, 1903.

l0 MODEL NTOR ATTORNEY a SHEETS-SHEET s( J. B. WARING. VALVE.

APPLIGATION FILED JULY 1, 1901. RBNBWBD FEB. 4. 1903.

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mwmmlmmlllll 1|,-|||- -MNMMNI E N N WITNESSES ivo. 737,681.

UNrTED STATES ratentedseptember 1, 190e.

PATENT., OFFRE;

JOHN E. WARING, OE EAS'r ORANGE, NEW JERSEY, ASSieNOR, BY MESNEASSIGNMENTS, To wARiNe'- PATENTS COMPANY, OE NEW YORK, N. Y.,

A CORPORATION OF NEW YORK.

VALVE;

SPECIFICATION forming part of Letters Patent No. 737,681,`datedSeptember 1, 1903.

Application filed July l. 1901. Renewed February 4, 1903. Serial No.141,931. (No model.)

To a/ZZ whom, it may concern:

3e it known that I, JOHN B. VARING, a citizen of the United States, anda resident of East Orange, Essex county, State of NeWJersey, haveinvented new and useful Improvements in Valves, of which the followingis a specification, reference being had to the accompanying drawings,forming part thereof.

This invention relates Yto valves adapted lo for the regulation orreduction of' pressures and for controlling the flow of a fluid from ahigh pressure to a low pressure and so regulating the flow of' the iiuidas to produce a uniform predetermined low pressure or pressure :5 beyondthe valve. My invention consists in the provision of improved meanswhereby such a valve is actuated in both directions by fluid from inadvance of the valve, the admission and exhaustion of' which iscontrolled 2o by the fluid-pressure beyond the valve.

My invention further consists in the provision in such a valve of valveactuating chambers for actuating the valve in both directions, withconnect-ions for admittingr and exhaustingl fluid from both of suoliactuating-` chambers, and a governingl device controlled by thelow-pressure fluid and controlling the connections to suchvalve-actuating chambers.

3o My invention further consists in the provision of a reciprocatingvalve having afiuidpassage and cooperating with openings in the casingto control the iiow of the fluid and actuated by pressure against theends of the re- 3 5 ciprocating valve, and, further, in the provision ofmeans for cushioning the movement of such valve.

My invention further consists in various improvements in constructionand combinations 4o of parts.

I will now describe the construction of the valve 'embodying myinvention, illustrated in the accompanying drawings, and will thereafterpoint out my invention in claims.

4 5 Figure 1 is a longitudinal central section of a valve embodying myinvention on the line 1 1 of Figs. 4. and 5. Fig. 2 is a section ofthesame ou the line 2 2 of Fig. 1. Fig. 3 is alongitudinal section of thesame on the line 3 3 5o of Fig. l. Fig. -fis a longitudinal section onthe line 4 of Figs. 1 and 2, with the govern; ing-valve and other partsremoved. Fig-5 is a bottom view of the cap or upper chest containing theregulating and controlling device and showing thevariouspressure-passages. 5 5

Referring to the drawings,the casing shown consists of two castings 1 2suitably secured togetl1er,whieh contain all the operative parts of' thevalve. The large casting 1 contains the inlet 3 and outlet i for thefiuid and the 6o high pressure chamber 5 and the low-pressure chamber 6,and also contains the main valve 7. The main valve is a reciprocatingvalve, having a passage therein for the fluid, and is shown as a pistonreciprocating in a cylinder formed in the casing, and the passage forthefluid is in the form of `a circumferential groove on the cylinder, sothat the valve is in the form of a double or tandem piston, the twoparts of the piston being 7o joined by a connecting portion 8 of reduceddiameter. The'high-pressure chamber 5 is shown as located in theleft-hand portion of the casing, and the low-pressure chamber 6 is shownas located in the right-hand portion of the casing, and an opening orcircumferential port J leads from the highpressure chamber to thecircumferential groove of the main valve 7 and is so arranged thatthispassage is open in all positions of the valve. Ports 10 areprovided, leading from the valvecylinder into the'loW-pressure chamber,and the opening of these ports is varied `or entirely closed by themovements of the main valve. The cylinder in which the piston 7 85reciprocates provides at its ends additional chambers between the endsof the piston and the ends of the cylinder, in which the pistonvalve isactuated in both directions by pressure of the fluid against its ends,the admission and exhaustion of' the fluid being controlledautomatically.

The controlling or governing device comprises a reciprocatingpiston-valve 11, fitted in a chamber having a bushing 12, and a pres- 95sure resisting device (shown as a doublecoiled spring 13) bears againstone end of the reciprocating governing-valve 11, and the lour pressureis admitted to press against the valve in opposition to the pressure of'the resisting roo device. The governing-valve 11 is provided withcircumferential grooves 14, 15, 16, and 17, arranged along the length ofthe valve and with packing or oil grooves between them, The right-handend circumferential groove 14 isahigh-pressure groove and coperates witha port 18, connected by an annular passage 19and two connecting-passages42 42, with a longitudinal groove 2O in the abutting face, where the twocastings of the casing are joined together, this longitudinal groovebeing connected by a passage 21'to the highpressure chamber 5. Anotherport, 22, oppositely arranged to the port 1S, receives the high pressureby way of the circumferential groove 14 and delivers it through apassage 23, leading to a longitudinal groove 3l, connected by a passage32 to the right-hand end of the chamber or cylinder of the main valve 7,and the function of the port 14 is to supply high-pressure fluid toactuate the main valve in the direction required for closing the portsleading into the low-pressure chamber. The circumferential groove 15 ofthe governingvalve is of sufficient length to cooperate in all positionswith the port and passage 24,1eadin g 1 from the longitudinal groove 25,which receives [luid through the passage 26 from the low-pressurechamber 6, (see Fig. 2,) and one or more passages are formed from thiscircumferential groove 15 through a longitudinal passage 27, locatedcentrally in the governingvalve and leading out through the right-handend of the governing-valve,so as to convey the low-pressure fluid foractuating the governing-valve. The circumferential groove 15 also openswhen in its extreme right-hand position a port and passage 23, leadingto a longitudinal groove 20, connected by a passage 30 to the, cylinderor chamber of the main valve and with its port located at a distancefrom the end of the cylinder or chamber, the function of these ports andpassages being to exhaust the fluid from the right-hand end of themain-valve cylinder or chamber, and the location of the port in suchcylinder or chamber insuring the cutting off of this exhaust before themain valve reaches its extreme right-hand position, whereby a portion ofthe fluid is trapped in the cylinder or chamber to cushion the action ofthe main valve. Another port and passage, 33, in the casing is locatedso'as to cooperate with the circumferential groove 15 when thegoverning-valve is in extreme left-hand position, and this port andpassage lead from a longitudinal groove 3S, which is connected bypassage 35 to the chamber or cylinder for the main valve at the lefthand thereof, its port terminating at a distance from the end of thechamber or cylinder and performing a similar function to the port andpassage SO-that is to say, exhausting the fluid from thecylinder andpermitting atrapping of a portion of the fluid and a cushioningaction.The circumferential groove 16 on the governing-valve coperates with theport 36, supplied with highpressure fluid from the annular passage 19,and this circumferential groove 16 also coperates with a port andpassage 37, leading to a longitudinal groove 34, which is connected by apassage and port 39 to the cylinder or chamber of the main valve, at theleft-hand end thereof, to supply high-pressure fluid to actuate the mainvalve. The circumferential groove 17 is a leakage-groove to receive anyof the high-pressure fluid which may pass thereto from the high-pressurecircumferential groove 16 and to convey the same to the longitudinalpassage in the governing-valve, so that such leakage, if any, is carriedto the low pressure and does not escape into the atmosphere.

The drawings illustrate the governing-valve in middleposition with allports closed except the port 24, conveying the low-pressure fluid toactuate the governing-valve. Such a balanced condition would occur inthe operation of the valve when the opening of the lowpressure ports wassuch as to supply the predetermined low pressure. Should the louTpressure fall below that required, the governing-valve 1l would be movedto the right and would first open the left-hand end 0f the main valve tothe high pressure at the circumferential groove 16, and thereby thehighpressure fluid would -be supplied to move the main valve to theright or in the direction required for increasing the opening at theregulating-ports 10, and a slight further movementto the right wouldalso open the exhaustport at the right-handy end of the cylinder of themain valve to permit the fluid at the right of the main valve to exhaustto the low-pressure side. Vhen the opening had been suflicientlyincreased to bring the low pressure up to the normal and predeterminedpoint, the governing-valve would be again moved to the left against theresistance of the spring 13 and the ports just opened would be againclosed. Should the low pressure rise above the normal or predeterminedpressure, the governing-valve would be moved farther to the left andwould open the high pressure to the right-hand end of the mainvalvethrough the circumferential groove 14 and the exhaust from the left-handend of the main valve through the circumferential groove 15,and the mainvalve'would be moved to the left or in the direction required forclosing the regulating-ports, and this would be continued until thediminution of the low pressure caused retrograde movement of thegoverning-valve.

For the purpose of increasing the actuating force of the governing-valvewithout magnifying the dimensions of the ported portions thereof lprovide a piston or enlargement 40 at vthe right-hand end of this valveand connect the chamberat the left-hand end of this piston with theatmosphere by the passage 41, so as to permit the piston to be freelyactuated by the low pressure.

It is obvious that various modifications may be made in the constructionabove particuloo ITO

larly described Within the spirit and scope of my invention.

What I claim, and desire to secure by Letters Patent, is

l. A pressurereducing valve comprising a casing having a high-pressurechamber and a low-pressure chamber, a valve controlling the passage offluid from the high-pressure chamber to the low-pressure chamber, thecasing being also provided Withadditional chambers at the ends of thevalve wherein the valve is actuated in both directions by fluid from thehighpressure chamber and with pressure and exhaust connections for suchadditional chambers, and a governing device controlled by the W pressureand controlling` at such preschambers one at each end of thepiston-valve wherein the piston-valve is actuated in both directions byfluid from thehigh pressure acting against the ends thereof and withpressure andexhaust connections for such additional chambers, and agoverning device controlled by the low pressure and controlling at suchpressure and exhaust connections the admission and exhaustion of thehigh-pressure fluid to and from the additional chambers.

3. A pressure-regulating valve comprising a casing, a reciprocatingvalve in the casing having a fluid-passage and cooperating With openingsin the casing to control the flow of a fluid, the casing having chambersformed therein at each end of the reciprocating valve, and meanscontrolled by the pressure beyond the valve and controlling theadmission of fluid from in advance of the valve to such chambers toactuate the valve in both directions by pressure of such fluid againstthe ends thereof' and controlling the exhaustion of such fluid.

1i. A pressure-reducin g valve comprising a casing, a reciprocatingvalve in the casing having a fluid-passage and cooperating with openingsin the casing to'gcontrol the flow of a fluid from a high pressure to a10W pressure, the casing having chambers at the ends of suchreciprocating valve, and a governingvalve controlled by the fluid at thelow-pressure side of the reciprocating valve, the casing having pressureand exhaust ports with which such governingvalve cooperates to admitfluid from the high-pressure side of the reciprocating valve to suchchambers to actuate the reciprocating valve in both directions bypressure of such fiuid at its ends and to exhaust such iiuid to theloiv-pressure side of the reciprocating valve.

5. A pressure-reducingvalve comprising a casing, a reciprocating' mainvalve in the cascasing being constructed to control the ad mission offluid from the highepressure side of the main valve to actuate the mainvalve in both directions by pressure of such fluid at its ends and toexhaust such fluid to the low-pressure side of the main valve.

G. A pressure-reducing valve comprising a casin g, a reciprocating mainvalve in the casing having a fluid-passage and cooperating with openingsin the casing to control the flow of fluid from a high pressure to a lowpressure, a reciprocating governing pistonvalve having circumferentialgrooves oooperating with ports in the casing to convey fluid from the higli-pressure side of' the main valve to actuate the main valve bypressure at the ends thereof and having a circumferential groovecooperating with ports in the casing to exhaust such fiuid to theloiv-pressure side of' the main valve, and having a passage thereinleading to one end thereof to supply fluid from theloW-pressure side ofthe main valve to actuate the governing-valve in one direction, andmeans for conveying leakage from the highpressure grooves to the lowpressure, and a resisting device for actuating the governingvalve in theother direction. y

7 In a pressure-reducingvalve, the combination,with a casing havin g acylinder therein, of a reciprocatingpiston-valve in the cylinderprovided With a circumferential groove, thecasinghavinganopeningleadingthehighpressure to such circumferentialgroove and ports leading from such groove to the low-pressure side ofthe piston-valve, and controlled by the movement of the piston-valve andthe casing having chambers at the ends of the pistonvalve, and meanscontrolled by pressure at the low-pressure side of the piston-valve foractuating the piston-valve from the high-pressure side thereof bypressure exerted in such chambers against the ends of the valve.

S. In a pressure-regulating valve, the combination, with a casing, of areciprocating valve in the casing having a fluid-passage and cooperatingwith openings in the casing to control the flow of fluid, the casinghaving inlets leading to each end of the reciprocating valve forsupplying fluid to actuate the valve, and the casing having outletsleading from points at a distance from the ends of the valve-chamber,whereby a portion of the fluid is trapped to cushion the movement of thereciprocating valve.

IOO

IIO

9. In a ln'essure-reducing valve, the coinbioperating with openings inthe casing' to control the flow of iiuid from a high pressure to a 10Wpressure, the casing having inlets leading to each end of thereciprocating valve and outlets leading from points at a distance fromthe ends of the valve-chamber, and a governing device controlled by thepressure at the 10W-pressure side of the valve and controlling theadmission of fluid through such inlets from the high-pressure side ofthe valve and the eX- haustion of such fluid through such outlets.

10. In a pressure-reducing valve, in combination, a casing, areciprocating Valve in the casing havin g a Huid-passage and cooperatingWith openings in the casin g to control the iioW of iluid from a highpressure to a low pressure, the casing having inlets leading to each endof the reciprocating valve and outlets leading from points'at a distancefrom the ends of the valve-chamber, and a governing device actuated bythe pressure from the low-pressure side of the valve, and a resistingdevice opposed to such pressure and controlling the admission of iuidthrough such inlets from veneer 11. A pressure-reducing valve mechanismhaving a high-pressure chamber and a lowpressure chamber and a valvecontrolling the passage of iiuid from one chamber to the other andhaving also valve -aetuating chambers located at the ends of the valveWith pressure and exhaust iiuid connections therefor for actuating thevalve in both directions by pres# sure against the ends thereof, and agoverning device controlled bythe low-pressure iiuid and controlling theconnections to the valve actuating chambers.

l2. A pressure-reducing valve mechanism having a high-pressure chamberand a loW- pressure chamber and a valve controlling the passage of iiuidfrom one chamber to the other, said valve being a'balanced valve, meanscontrolled by the low pressure for actuating the valve in bothdirections, and means for cushioning the valve at one end, at least, ofits stroke.

Signed at New York, N. Y., this 29th day of June, 1901.

JOHN B. VARING.

Vitnesses:

HENRY D. WILLIAMS, HERBERT l-l. GIBBs.

